just a heads up...
there's currently a bug in at least one, possibly more, Comodo apps such as Internet Security Premium (v5.0.163652.1142) where the updater function steals keyboard/window focus. so if you're typing away at an email and or whatever and notice some of what you typed is AWOL, this may be why. it can also cause full screen apps (a game in my case) to minimize to the task bar - very annoying!
they know about the bug - hopefully fixed next version
workaround - disable automatic updating